## ACPI Configuration#menuconfig ACPI
bool"ACPI (Advanced Configuration and Power Interface) Support"depends on!IA64_HP_SIM
depends on IA64 || X86
depends on PCI
depends on PM
select PNP
select CPU_IDLE
default y
help Advanced Configuration and Power Interface (ACPI) support for Linux requires an ACPI-compliant platform (hardware/firmware), and assumes the presence of OS-directed configuration and power management (OSPM) software. This option will enlarge your kernel by about 70K. Linux ACPI provides a robust functional replacement for several legacy configuration and power management interfaces, including the Plug-and-Play BIOS specification (PnP BIOS), the MultiProcessor Specification (MPS), and the Advanced Power Management (APM) specification. If both ACPI and APM support are configured, ACPI is used. The project home page for the Linux ACPI subsystem is here: <http://www.lesswatts.org/projects/acpi/> Linux support for ACPI is based on Intel Corporation's ACPI Component Architecture (ACPI CA). For more information on the ACPI CA, see: <http://acpica.org/> ACPI is an open industry specification co-developed by Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. The specification is available at: <http://www.acpi.info>if ACPI
config ACPI_SLEEP
booldepends on SUSPEND || HIBERNATION
default y
config ACPI_PROCFS
bool"Deprecated /proc/acpi files"depends on PROC_FS
help For backwards compatibility, this option allows deprecated /proc/acpi/ files to exist, even when they have been replaced by functions in /sys. The deprecated files (and their replacements) include: /proc/acpi/sleep (/sys/power/state) /proc/acpi/info (/sys/module/acpi/parameters/acpica_version) /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) /proc/acpi/processor/*/power (/sys/devices/system/cpu/*/cpuidle/*) /proc/acpi/processor/*/performance (/sys/devices/system/cpu/*/ cpufreq/*) /proc/acpi/processor/*/throttling (/sys/class/thermal/ cooling_device*/*) This option has no effect on /proc/acpi/ files and functions which do not yet exist in /sys. Say N to delete /proc/acpi/ files that have moved to /sys/config ACPI_PROCFS_POWER
bool"Deprecated power /proc/acpi directories"depends on PROC_FS
default y
help For backwards compatibility, this option allows deprecated power /proc/acpi/ directories to exist, even when they have been replaced by functions in /sys. The deprecated directories (and their replacements) include: /proc/acpi/battery/* (/sys/class/power_supply/*) /proc/acpi/ac_adapter/* (sys/class/power_supply/*) This option has no effect on /proc/acpi/ directories and functions, which do not yet exist in /sys Say N to delete power /proc/acpi/ directories that have moved to /sys/config ACPI_POWER_METER
tristate"ACPI 4.0 power meter"depends on HWMON
help This driver exposes ACPI 4.0 power meters as hardware monitoring devices. Say Y (or M) if you have a computer with ACPI 4.0 firmware and a power meter. To compile this driver as a module, choose M here: the module will be called power-meter.config ACPI_SYSFS_POWER
bool"Future power /sys interface"select POWER_SUPPLY
default y
help Say N to disable power /sys interfaceconfig ACPI_PROC_EVENT
bool"Deprecated /proc/acpi/event support"depends on PROC_FS
default y
help A user-space daemon, acpid, typically reads /proc/acpi/event and handles all ACPI-generated events. These events are now delivered to user-space either via the input layer or as netlink events. This build option enables the old code for legacy user-space implementation. After some time, this will be moved under CONFIG_ACPI_PROCFS, and then deleted. Say Y here to retain the old behaviour. Say N if your user-space is newer than kernel 2.6.23 (September 2007).config ACPI_AC
tristate"AC Adapter"depends on X86
default y
help This driver supports the AC Adapter object, which indicates whether a system is on AC or not. If you have a system that can switch between A/C and battery, say Y. To compile this driver as a module, choose M here: the module will be called ac.config ACPI_BATTERY
tristate"Battery"depends on X86
default y
help This driver adds support for battery information through /proc/acpi/battery. If you have a mobile system with a battery, say Y. To compile this driver as a module, choose M here: the module will be called battery.config ACPI_BUTTON
tristate"Button"depends on INPUT
default y
help This driver handles events on the power, sleep, and lid buttons. A daemon reads /proc/acpi/event and perform user-defined actions such as shutting down the system. This is necessary for software-controlled poweroff. To compile this driver as a module, choose M here: the module will be called button.config ACPI_VIDEO
tristate"Video"depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
depends on INPUT
select THERMAL
help This driver implements the ACPI Extensions For Display Adapters for integrated graphics devices on motherboard, as specified in ACPI 2.0 Specification, Appendix B. This supports basic operations such as defining the video POST device, retrieving EDID information, and setting up a video output. To compile this driver as a module, choose M here: the module will be called video.config ACPI_FAN
tristate"Fan"select THERMAL
default y
help This driver supports ACPI fan devices, allowing user-mode applications to perform basic fan control (on, off, status). To compile this driver as a module, choose M here: the module will be called fan.config ACPI_DOCK
bool"Dock"depends on EXPERIMENTAL
help This driver supports ACPI-controlled docking stations and removable drive bays such as the IBM Ultrabay and the Dell Module Bay.config ACPI_PROCESSOR
tristate"Processor"select THERMAL
default y
help This driver installs ACPI as the idle handler for Linux and uses ACPI C2 and C3 processor states to save power on systems that support it. It is required by several flavors of cpufreq performance-state drivers. To compile this driver as a module, choose M here: the module will be called processor.config ACPI_HOTPLUG_CPU
booldepends on ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_CONTAINER
default y
config ACPI_PROCESSOR_AGGREGATOR
tristate"Processor Aggregator"depends on ACPI_PROCESSOR
depends on EXPERIMENTAL
depends on X86
help ACPI 4.0 defines processor Aggregator, which enables OS to perform specific processor configuration and control that applies to all processors in the platform. Currently only logical processor idling is defined, which is to reduce power consumption. This driver supports the new device.config ACPI_THERMAL
tristate"Thermal Zone"depends on ACPI_PROCESSOR
select THERMAL
default y
help This driver supports ACPI thermal zones. Most mobile and some desktop systems support ACPI thermal zones. It is HIGHLY recommended that this option be enabled, as your processor(s) may be damaged without it. To compile this driver as a module, choose M here: the module will be called thermal.config ACPI_NUMA
bool"NUMA support"depends on NUMA
depends on(X86 || IA64)
default y if IA64_GENERIC || IA64_SGI_SN2
config ACPI_CUSTOM_DSDT_FILE
string"Custom DSDT Table file to include"default""depends on!STANDALONE
help This option supports a custom DSDT by linking it into the kernel. See Documentation/acpi/dsdt-override.txt Enter the full path name to the file which includes the AmlCode declaration. If unsure, don't enter a file name.config ACPI_CUSTOM_DSDT
booldefault ACPI_CUSTOM_DSDT_FILE !=""config ACPI_BLACKLIST_YEAR
int"Disable ACPI for systems before Jan 1st this year"if X86_32
default0help Enter a 4-digit year, e.g., 2001, to disable ACPI by default on platforms with DMI BIOS date before January 1st that year. "acpi=force" can be used to override this mechanism. Enter 0 to disable this mechanism and allow ACPI to run by default no matter what the year. (default)config ACPI_DEBUG
bool"Debug Statements"default n
help The ACPI subsystem can produce debug output. Saying Y enables this output and increases the kernel size by around 50K. Use the acpi.debug_layer and acpi.debug_level kernel command-line parameters documented in Documentation/acpi/debug.txt and Documentation/kernel-parameters.txt to control the type and amount of debug output.config ACPI_DEBUG_FUNC_TRACE
bool"Additionally enable ACPI function tracing"default n
depends on ACPI_DEBUG
help ACPI Debug Statements slow down ACPI processing. Function trace is about half of the penalty and is rarely useful.config ACPI_PCI_SLOT
tristate"PCI slot detection driver"depends on SYSFS
default n
help This driver creates entries in /sys/bus/pci/slots/ for all PCI slots in the system. This can help correlate PCI bus addresses, i.e., segment/bus/device/function tuples, with physical slots in the system. If you are unsure, say N. To compile this driver as a module, choose M here: the module will be called pci_slot.config X86_PM_TIMER
bool"Power Management Timer Support"if EMBEDDED
depends on X86
default y
help The Power Management Timer is available on all ACPI-capable, in most cases even if ACPI is unusable or blacklisted. This timing source is not affected by power management features like aggressive processor idling, throttling, frequency and/or voltage scaling, unlike the commonly used Time Stamp Counter (TSC) timing source. You should nearly always say Y here because many modern systems require this timer. config ACPI_CONTAINER
tristate"Container and Module Devices (EXPERIMENTAL)"depends on EXPERIMENTAL
default(ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
help This driver supports ACPI Container and Module devices (IDs ACPI0004, PNP0A05, and PNP0A06). This helps support hotplug of nodes, CPUs, and memory. To compile this driver as a module, choose M here: the module will be called container.config ACPI_HOTPLUG_MEMORY
tristate"Memory Hotplug"depends on MEMORY_HOTPLUG
default n
help This driver supports ACPI memory hotplug. The driver fields notifications on ACPI memory devices (PNP0C80), which represent memory ranges that may be onlined or offlined during runtime. If your hardware and firmware do not support adding or removing memory devices at runtime, you need not enable this driver. To compile this driver as a module, choose M here: the module will be called acpi_memhotplug.config ACPI_SBS
tristate"Smart Battery System"depends on X86
help This driver supports the Smart Battery System, another type of access to battery information, found on some laptops. To compile this driver as a module, choose M here: the modules will be called sbs and sbshc.endif# ACPI